Recap / Doctor Who S4 E1 "The Smugglers"
Please, you think you can intimidate Hartnell with a knife? This man has crossed swords with crusaders and lived to tell the tale!
The Doctor: You are now travelling through time and space.
Ben: Yes, well, make sure I get back by tea-time!

Season four kicks off with another historical tale, this time in 17th century Cornwall as the Doctor and new companions Polly and Ben get involved in a search for hidden treasure, smuggling and kidnap - all the pirate movie staples, but this time in Cornwall instead of the Caribbean.

The Doctor inadvertently hears a rhyme telling the location of the treasure and is kidnapped by the pirates. He escapes, but is eventually forced to tell them the rhyme anyway, and the treasure is found - just as the feared "Revenue Men" turn up with the local militia. In the ensuing fight, most of the pirates are killed and the travellers make their escape.